Introduction 1-5
The padlock ring allows you to secure the computer
cover to the chassis to prevent unauthorized access to the
inside of the computer. To use the padlock ring, insert a
commercially available padlock through the ring and
then lock the padlock.

Figure 1-2. Security Cable Slot and Padlock

Ring

E
nergy Star Compliance
Certain configurations of Dell computer systems comply
with the requirements set forth by the Environmental
Protection Agency (EPA) for energy-efficient computers.
If the front panel of your computer bears the Energy Star
Emblem (see Figure1-3), your original configuration
complied with these requirements and all Energy Star
power management features of the computer are enabled.
To disable or change the operation of these features, you
must change the setting for the Power Management cate-
gory in the System Setup program. For instructions, see
Chapter 2, ��Using the System Setup Program.”
NOTES: As an Energy Star Partner, Dell Computer Cor-
poration has determined that this product meets the
Energy Star guidelines for energy efficiency.
Any Dell computer bearing the Energy Star Emblem is
certified to comply with EPA Energy Star requirements as
configured when shipped by Dell. Any changes you
make to this configuration (such as installing additional
expansion cards or drives) may increase the system’s
power consumption beyond the limits set by the EPA’s
Energy Star Computers program.

Figure 1-3. Energy Star Emblem

The EPA’s Energy Star Computers program is a joint
effort between the EPA and computer manufacturers to
reduce air pollution by promoting energy-efficient com-
puter products. The EPA estimates that use of Energy
Star computer products can save computer users up to
two billion dollars annually in electricity costs. In turn,
this reduction in electricity usage can reduce emissions of
carbon dioxide, the gas primarily responsible for the
greenhouse effect, and sulfur dioxide and nitrogen
oxides, which are the two primary causes of acid rain.
Computer users can also help to reduce electricity usage
and its side effects by turning off their computer systems
when they are not in use for extended periods of time—
particularly at night and on weekends.
I
mportant Note for Windows 95 Users
Your system was configured by Dell to optimize the
Microsoft Windows 95 operating system features. To
ensure that all of these features are maintained on your
system, you must use the version of the Windows 95
operating system that Dell installed on your hard-disk
drive.
Should you need to reinstall the Windows 95 operating
system on an OptiPlex GXa system for any reason, you
must be sure to reinstall the correct version. Dell recom-
mends performing a periodic tape backup of the system’s
entire hard-disk drive so that, if necessary, the operating
system, drivers, and other software can be reinstalled as
originally configured with a minimum of downtime.
security cable slot
padlock ring
TM